this is the error message:
Info: Running Quartus II EDA Netlist Writer
Info: Version 7.1 Build 156 04/30/2007 SJ Full Version
Info: Processing started: Tue Jul 24 11:32:08 2007
Info: Command: quartus_eda --read_settings_files=off --write_settings_files=off niosbase -c niosbase
Error: Can't generate netlist output files because the file "C:/PCIE/niosbase/cpu.v" is an OpenCore Plus time-limited file
Error: Can't generate netlist output files because the file "C:/PCIE/niosbase/cpu.v" is an OpenCore Plus time-limited file
Error: Can't generate netlist output files because the file "C:/PCIE/niosbase/cpu.v" is an OpenCore Plus time-limited file
Error: Can't generate netlist output files because the file "C:/PCIE/niosbase/cpu.v" is an OpenCore Plus time-limited file
Error: Quartus II EDA Netlist Writer was unsuccessful. 4 errors, 0 warnings
Info: Allocated 118 megabytes of memory during processing
Error: Processing ended: Tue Jul 24 11:32:10 2007
Error: Elapsed time: 00:00:02
Error: Quartus II Full Compilation was unsuccessful. 4 errors, 112 warnings